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With credit card payment, the authorization of the payment may in some cases "not work" due to fraud prevention mechanisms. Additionally, a missing or incorrect online PIN, incorrectly entered SMS TAN, or a missing security code on the back could be the cause ("old" credit card).
Sometimes an address query (stored address / order address) is also performed. This depends on the respective credit institution: We have no influence on this.
Please choose a different payment method if possible.
Further information:
We offer 3-D Secure 1 and 3-D Secure 2. How does 3-D Secure 2 differ from the previous procedure?
Essentially, 3-D Secure 2 represents a further development of the previous 3-D Secure protocol. With each credit card order, up to 100 data points are transmitted to the card issuer (bank); based on these data points, the card issuer performs a real-time risk assessment. If a transaction is classified as low-risk, it can be authorized directly and without further interaction from the buyer.
However, if fraud is suspected, the buyer is prompted to reconfirm their identity through an additional security query (e.g. via push TAN). The risk assessment runs imperceptibly in the background for the buyer.
